Leases - Narrative (Details) - USD ($)	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Lessee, Lease, Description [Line Items]
Lease-related asset impairments	$ 9,000,000	$ 29,000,000	$ 75,000,000
Weighted average remaining lease term	6 years 2 months 12 days	6 years 6 months
Weighted average discount rate	2.86%	2.60%
Public income remaining lease term	8 years 1 month 6 days
Sublease income	$ 8,000,000	$ 5,000,000	$ 0
Sublease income payments	71,000,000
Sublease income payments, expect to receive, for fiscal 2025 through fiscal 2029	42,000,000
Sublease income payments, expect to receive, thereafter	29,000,000
operating lease minimum lease payments	$ 9,000,000
Minimum
Lessee, Lease, Description [Line Items]
Operating lease remaining lease term	1 year
Lease renewal term	1 year
Optional termination period	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease remaining lease term	66 years
Lease renewal term	9 years
Optional termination period	6 years